well, how about the fact that the bulk of the rank and file employees were allowed to sell after today's lockup expiration? many of them have their life savings tied up in the stock. perhaps because there's a terrible track record of past facebook lock-ups, one which led to a 6.3% fall when it expired and the second one led to a 3.8% decline when it expired. plus there is the sheer size of the deal. 777 million shares? a level of supply that the paper pointed out would be hard to digest. especially given the public's sour sentiment toward the stock. so what happens? not only does the stock not plummet but it rallies. rallies big! in fact, having its best day ever. up $2.50 on a 12.6% gain. come on, the market was down horribly. what gives? is that just the nutty ways of wall street? are things so upside down that a stock goes up precisely because it's supposed to go down, even on a horrible day? no, no, no, no, no. it makes perfect sense, and here's why. first, this is one of the most talked about, known about, and widely talked about expirations i've ever seen. that means many were braced for it and didn't take anyone by surprise.